session-android/src/org/thoughtcrime/securesms/KeyScanningActivity.java
2014-01-06 14:35:53 -08:00

121 lines
3.9 KiB
Java

/**
* Copyright (C) 2011 Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.thoughtcrime.securesms;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
import org.whispersystems.textsecure.crypto.SerializableKey;
import org.whispersystems.textsecure.util.Base64;
import org.thoughtcrime.securesms.util.Dialogs;
import org.thoughtcrime.securesms.util.DynamicTheme;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import org.whispersystems.textsecure.zxing.integration.IntentIntegrator;
import org.whispersystems.textsecure.zxing.integration.IntentResult;
/**
* Activity for initiating/receiving key QR code scans.
*
* @author Moxie Marlinspike
*/
public abstract class KeyScanningActivity extends PassphraseRequiredSherlockActivity {
private final DynamicTheme dynamicTheme = new DynamicTheme();
@Override
protected void onCreate(Bundle bundle) {
dynamicTheme.onCreate(this);
super.onCreate(bundle);
}
@Override
public void onResume() {
super.onResume();
dynamicTheme.onResume(this);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
MenuInflater inflater = this.getSupportMenuInflater();
menu.clear();
inflater.inflate(R.menu.key_scanning, menu);
menu.findItem(R.id.menu_scan).setTitle(getScanString());
menu.findItem(R.id.menu_get_scanned).setTitle(getDisplayString());
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
switch (item.getItemId()) {
case R.id.menu_scan: initiateScan(); return true;
case R.id.menu_get_scanned: initiateDisplay(); return true;
case android.R.id.home: finish(); return true;
}
return false;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
if ((scanResult != null) && (scanResult.getContents() != null)) {
String data = scanResult.getContents();
if (data.equals(Base64.encodeBytes(getIdentityKeyToCompare().serialize()))) {
Dialogs.displayAlert(this, getVerifiedTitle(), getVerifiedMessage(), android.R.drawable.ic_dialog_info);
} else {
Dialogs.displayAlert(this, getNotVerifiedTitle(), getNotVerifiedMessage(), android.R.drawable.ic_dialog_alert);
}
} else {
Toast.makeText(this, R.string.KeyScanningActivity_no_scanned_key_found_exclamation,
Toast.LENGTH_LONG).show();
}
}
protected void initiateScan() {
IntentIntegrator.initiateScan(this);
}
protected void initiateDisplay() {
IntentIntegrator.shareText(this, Base64.encodeBytes(getIdentityKeyToDisplay().serialize()));
}
protected abstract String getScanString();
protected abstract String getDisplayString();
protected abstract String getNotVerifiedTitle();
protected abstract String getNotVerifiedMessage();
protected abstract SerializableKey getIdentityKeyToCompare();
protected abstract SerializableKey getIdentityKeyToDisplay();
protected abstract String getVerifiedTitle();
protected abstract String getVerifiedMessage();
}